<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      const thing = {
        eat: true,
      };
      const animal = {
        //父
        eat: false,
        say: function () {
          console.log('hello');
        },
        __proto__: thing,
      };
      const rabit = {
        //子
        eat: true,
        __proto__: animal,
      };

      console.log(rabit.eat);
      rabit.say();
    </script>
  </body>
</html>
